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| 1 <!-- | |
| 2 Copyright (c) 2014 The Polymer Project Authors. All rights reserved. | |
| 3 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE | |
| 4 The complete set of authors may be found at http://polymer.github.io/AUTHORS | |
| 5 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS | |
| 6 Code distributed by Google as part of the polymer project is also | |
| 7 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS | |
| 8 --> | |
| 9 | |
| 10 <!-- | |
| 11 @group Paper Elements | |
| 12 | |
| 13 Material Design: <a href="http://www.google.com/design/spec/components/buttons.h
tml">Buttons</a> | |
| 14 | |
| 15 `paper-icon-button` is a button with an image placed at the center. When the use
r touches | |
| 16 the button, a ripple effect emanates from the center of the button. | |
| 17 | |
| 18 `paper-icon-button` includes a default icon set. Use `icon` to specify which ic
on | |
| 19 from the icon set to use. | |
| 20 | |
| 21 <paper-icon-button icon="menu"></paper-icon-button> | |
| 22 | |
| 23 See [`core-iconset`](#core-iconset) for more information about | |
| 24 how to use a custom icon set. | |
| 25 | |
| 26 Example: | |
| 27 | |
| 28 <link href="path/to/core-icons/core-icons.html" rel="import"> | |
| 29 | |
| 30 <paper-icon-button icon="favorite"></paper-icon-button> | |
| 31 <paper-icon-button src="star.png"></paper-icon-button> | |
| 32 | |
| 33 Styling | |
| 34 ------- | |
| 35 | |
| 36 Style the button with CSS as you would a normal DOM element. If you are using th
e icons | |
| 37 provided by `core-icons`, they will inherit the foreground color of the button. | |
| 38 | |
| 39 /* make a red "favorite" button */ | |
| 40 <paper-icon-button icon="favorite" style="color: red;"></paper-icon-button> | |
| 41 | |
| 42 By default, the ripple is the same color as the foreground at 25% opacity. You m
ay | |
| 43 customize the color using this selector: | |
| 44 | |
| 45 /* make #my-button use a blue ripple instead of foreground color */ | |
| 46 #my-button::shadow #ripple { | |
| 47 color: blue; | |
| 48 } | |
| 49 | |
| 50 The opacity of the ripple is not customizable via CSS. | |
| 51 | |
| 52 Accessibility | |
| 53 ------------- | |
| 54 | |
| 55 The button is accessible by default if you use the `icon` property. By default,
the | |
| 56 `aria-label` attribute will be set to the `icon` property. If you use a custom i
con, | |
| 57 you should ensure that the `aria-label` attribute is set. | |
| 58 | |
| 59 <paper-icon-button src="star.png" aria-label="star"></paper-icon-button> | |
| 60 | |
| 61 @element paper-icon-button | |
| 62 @extends paper-button-base | |
| 63 @homepage github.io | |
| 64 --> | |
| 65 | |
| 66 <link href="../polymer/polymer.html" rel="import"> | |
| 67 <link href="../core-icon/core-icon.html" rel="import"> | |
| 68 <link href="../core-icons/core-icons.html" rel="import"> | |
| 69 <link href="../paper-button/paper-button-base.html" rel="import"> | |
| 70 <link href="../paper-ripple/paper-ripple.html" rel="import"> | |
| 71 | |
| 72 <polymer-element name="paper-icon-button" extends="paper-button-base" attributes
="src icon" role="button"> | |
| 73 | |
| 74 <template> | |
| 75 | |
| 76 <style> | |
| 77 :host { | |
| 78 display: inline-block; | |
| 79 position: relative; | |
| 80 padding: 8px; | |
| 81 outline: none; | |
| 82 -webkit-user-select: none; | |
| 83 -moz-user-select: none; | |
| 84 -ms-user-select: none; | |
| 85 user-select: none; | |
| 86 cursor: pointer; | |
| 87 z-index: 0; | |
| 88 } | |
| 89 | |
| 90 :host([disabled]) { | |
| 91 color: #c9c9c9; | |
| 92 pointer-events: none; | |
| 93 cursor: auto; | |
| 94 } | |
| 95 | |
| 96 #ripple { | |
| 97 pointer-events: none; | |
| 98 z-index: -1; | |
| 99 } | |
| 100 | |
| 101 #icon { | |
| 102 display: block; | |
| 103 pointer-events: none; | |
| 104 } | |
| 105 </style> | |
| 106 | |
| 107 <!-- to position to ripple behind the icon --> | |
| 108 <core-icon relative id="icon" src="{{src}}" icon="{{icon}}"></core-icon> | |
| 109 | |
| 110 </template> | |
| 111 | |
| 112 <script> | |
| 113 Polymer({ | |
| 114 | |
| 115 publish: { | |
| 116 | |
| 117 /** | |
| 118 * The URL of an image for the icon. If the src property is specified, | |
| 119 * the icon property should not be. | |
| 120 * | |
| 121 * @attribute src | |
| 122 * @type string | |
| 123 * @default '' | |
| 124 */ | |
| 125 src: '', | |
| 126 | |
| 127 /** | |
| 128 * Specifies the icon name or index in the set of icons available in | |
| 129 * the icon's icon set. If the icon property is specified, | |
| 130 * the src property should not be. | |
| 131 * | |
| 132 * @attribute icon | |
| 133 * @type string | |
| 134 * @default '' | |
| 135 */ | |
| 136 icon: '', | |
| 137 | |
| 138 recenteringTouch: true, | |
| 139 fill: false | |
| 140 | |
| 141 }, | |
| 142 | |
| 143 iconChanged: function(oldIcon) { | |
| 144 var label = this.getAttribute('aria-label'); | |
| 145 if (!label || label === oldIcon) { | |
| 146 this.setAttribute('aria-label', this.icon); | |
| 147 } | |
| 148 } | |
| 149 | |
| 150 }); | |
| 151 | |
| 152 </script> | |
| 153 | |
| 154 </polymer-element> | |
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